From: Eric DeVolder <eric.devolder@oracle.com>
To: Andrew Morton <akpm@linux-foundation.org>, Baoquan He <bhe@redhat.com>
Cc: linux-kernel@vger.kernel.org, kexec@lists.infradead.org,
vschneid@redhat.com, sourabhjain@linux.ibm.com
Subject: Re: [PATCH v3] Crash: add lock to serialize crash hotplug handling
Date: Tue, 26 Sep 2023 16:53:37 -0500 [thread overview]
Message-ID: <11bebd5e-8183-d7a7-6acc-53b00a6cc2d5@oracle.com> (raw)
In-Reply-To: <20230926135001.4eb6ca73b1a4aa6224355ad1@linux-foundation.org>
On 9/26/23 15:50, Andrew Morton wrote:
> On Tue, 26 Sep 2023 20:09:05 +0800 Baoquan He <bhe@redhat.com> wrote:
>
>> Eric reported that handling corresponding crash hotplug event can be
>> failed easily when many memory hotplug event are notified in a short
>> period. They failed because failing to take __kexec_lock.
>
> I'm assuming that this failure is sufficiently likely so as to justify a -stable
> backport of the fix. Please let me know if this is incorrect.
Andrew,
Correct, this is sufficiently likely to happen.
Thanks,
eric
next prev parent reply other threads:[~2023-09-27 0:16 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-26 12:09 [PATCH v3] Crash: add lock to serialize crash hotplug handling Baoquan He
2023-09-26 14:55 ` Eric DeVolder
2023-09-26 20:50 ` Andrew Morton
2023-09-26 21:53 ` Eric DeVolder [this message]
2023-09-27 0:14 ` Baoquan He
2023-09-28 8:51 ` Valentin Schneider
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